package com.demo2;

class Student07 {
    private String name;
    private int age;

    public Student07() {
    }

    public Student07(String n) {
        name = n;
    }

    public Student07(String n, int a) {
        name = n;
        age = a;
    }

    void read() {
        System.out.println("大家好，我是" + name + ",年龄" + age);
    }

}

public class Example07 {
    public static void main(String[] args) {
        Student07 stu1 = new Student07("张三");
        Student07 stu2 = new Student07("张三", 18);
        stu1.read();
        stu2.read();

    }
}
